JPS609559Y2 - incinerator - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an incinerator in which a ventilation outlet is formed in the side wall of the combustion chamber.

BACKGROUND ART Conventionally, as shown in FIGS. 1 and 2, an incinerator has been employed in which air is blown out not only from a hearth 1 but also from a side wall 2 of a combustion chamber for combustion.

In such a furnace, the part of the side wall 2 that comes into direct contact with the flame is composed of a plate 3 made of ordinary cast steel, and this plate 3 is hung on the side wall 2 by a hook 4 on the back as shown in FIG. An air outlet 6 is formed between the plates, from which air is blown out.

Further, as shown in FIG. 3, an air chamber 8 in which each outlet 6 communicates through a hole 7 is formed on the back side of the side wall 2 on which the hook 4 is hung, and an air supply duct 9 is connected to this air chamber 8. It is a communication.

However, with such a structure, the height of the dust layer inside the combustion chamber is usually about 300 to 600771771, and the dust layer covers that height and the air outlet 6 in that part is blocked. Since the amount of air blown out decreases, there is a risk that the plate 3 in the relevant part will not be cooled and become hot and burnt out, and not only will secondary combustion air not be sufficiently supplied to the garbage, resulting in highly efficient combustion. There are problems such as not being carried out.

The purpose of this invention is to solve the above-mentioned problems by increasing the back pressure of the air outlet which is covered with dust.

That is, the air chamber is divided into an outlet side and a duct side by a partition plate that is open at the bottom, and an air resistance plate is arranged at a position corresponding to the height of the combustion waste in the combustion chamber in the air chamber on the outlet side. It was established.

An embodiment of this invention will be described below with reference to the accompanying drawings.

As shown in Figures 1 and 2, the hearth 1 is made of heat-resistant cast steel;
A stoker consisting of a strip-shaped Rosdol 10 is configured in a step-like manner, and the waste is burned while being sent forward (rightward in FIG. 1).

A garbage supply chute 11 faces in front of the hearth 1, and the garbage from this chute 11 is sent to the hearth 1 by an extrusion device 12.
Push upwards.

The part of the side wall 2 of the combustion chamber that comes into direct contact with the flame is composed of a cast steel plate 3, and has an outlet 6, an air chamber 8, etc. formed therein.

As shown in Figure 4, the back of this air chamber 8 (right side in the figure)
The air supply duct 9 opens, and the air chamber 8 is divided into an outlet side P and a duct side Q by a partition plate 13 that is open at the bottom. , an air resistance plate 14 is provided at approximately the same height as the combustion waste A in the combustion chamber.

The gap between the resistance plates 14 is set appropriately so that the amount of air blown out from all the air outlets 6 is substantially uniform.

Further, the arrangement of the resistance plates 14 does not need to be at the same height throughout the furnace, and can be changed as appropriate depending on the location.

In short, it is sufficient that the resistance plate 14 allows the air back pressure of the air outlet 6 covered with the dust A to be higher than the air back pressure of the air outlet 6 located above it.

In addition, in the figure, 16 is a flue, and 17 is an ash outlet.

Next, the effect will be explained.

Now, when the garbage in the chute 11 is pushed out onto the hearth 1 by the extrusion device, it burns while moving forward on the hearth 1.
It is discharged from the discharge port 17 as ash.

In such a combustion process, the air from duct 9 is
First, it flows into the duct side Q of the air chamber 8, and then enters the outlet side P from below the partition plate 13.

While the circulation of this air is obstructed by the resistance plate 14,
It flows upward through the gap between the resistance plates 14.

Therefore, the air pressure is higher below the resistance plate 14 than above, and this high-pressure air flows through the hole 7 between the plate 3 covered with dust and the side wall 2.

Therefore, this part also becomes high pressure, and the amount of air blown out from the air outlet 6 is much larger than in the conventional structure, causing the plate 3
The waste is sufficiently cooled, and a sufficient amount of secondary combustion air is supplied into the waste, so that highly efficient combustion is carried out without burning out the plates 3.

As described above, according to this invention, an air chamber is formed on the back side of the side wall of the combustion chamber that has air outlets, and each air outlet communicates with the air chamber. The combustion chamber is divided into the air outlet side and the duct side by a partition plate that is open at the bottom, and an air resistance plate is installed on the air outlet side at approximately the same height as the combustion waste inside the combustion chamber, so that the air resistance plate is placed at approximately the same height as the combustion waste in the combustion chamber. Since the air pressure at the outlet is higher than before and more air is blown out, highly efficient combustion can be performed without causing burnout.

In addition, since the side wall 2 is covered by the cast steel plate 3, it has the effect of preventing clinker from adhering to the side wall and preventing thermal damage to the bricks. Since the dust is pushed into the combustion chamber, problems such as dust clogging and clogging the air outlet do not occur.

[Brief explanation of the drawing]

Figure 1 is a schematic front view of an incinerator, Figure 2 is a schematic side view of Figure 1, Figure 3 is a partial sectional view of a conventional incinerator, and Figure 4 is a partial sectional view of an incinerator based on the invention. be. 1... Hearth, 2... Side wall, 3...
...Plate, 6...Blowout outlet, 8...
Air chamber, 9... Curved air supply duct, 13...
Partition plate, 14...Air resistance plate.

Claims (1)

[Scope of utility model registration request] In an incinerator in which a ventilation outlet is formed in a side wall of a combustion chamber, an air chamber in which each outlet communicates is formed on the back side of the side wall having the outlet, and an air supply duct is communicated with the back side of the air chamber. , the air chamber is divided into an air outlet side and a duct side by a partition plate that is open at the bottom, and an air resistance plate is installed in the air chamber on the air outlet side at a position corresponding to the height of the combustible waste in the combustion chamber. An incinerator characterized by being equipped with.